Hongyu Ni, MD

Medicare activity in 2024

Official CMS public-use data for Hongyu Ni, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Flow cytometry technique for dna or cell analysis, each additional marker (88185)4,945 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)1,025 services
3. Flow cytometry technique for dna or cell analysis, 16 or more markers (88189)449 services
4. Special stained specimen slides to examine tissue including interpretation and report (88313)299 services
5. Microscopic genetic analysis of tumor, manual (88360)276 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis59%
• Ischemic heart disease55%
• Diabetes43%
• Chronic kidney disease39%

Hospitals where Hongyu Ni works

Medicare's Facility Affiliation Data lists Hongyu Ni at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625

Practice locations

Addresses where Hongyu Ni is enrolled with Medicare (CMS data updated October 2, 2026).

• 8700 Beverly BlvdWest Hollywood, CA 90048 (310) 423‑3277

Group practices

Medicare enrollment lists Hongyu Ni as a member of this group (CMS data updated October 2, 2026).

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in California →

Other pathologists in West Hollywood

Clinicians with the same Medicare primary specialty in West Hollywood, CA — not a recommendation.

• Robert B. Frick, MD
• Nicholas Bercovici, DO
• Reza Setoodeh, MD
• Ingrid Perez-Alvarez, MD
• Swati Bhardwaj, MD
• Paul S. Weisman, MD
• Keith Lai, MD
• Keluo Yao, MD

All pathologists in West Hollywood →

Other clinicians in Cedars-Sinai Medical Care Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Richard L. Wulfsberg, MD
• Stephen M. Doane, MD
• Michael E. Bowdish, MD
• Cheryl L. Dunnett, MD
• Victoria Rodriguez
• Shahram Sepehri, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians